Machine for filling valve-bags.



A. Iv. BATES. MACHINE FOR FXLLING VALVE BAGSa APPLIUATION FILED A. M. BATES. MACHINE POE FILLING VALVE BAGS.

APPLICATION FILED FEB. 23, 1907.

980,906. ,Patented Jan. 10,1911.

3 SEBETSSHEBT 2.

A! EL BATES MAGHIHE FOR FILLING VALVE BAGS.

mrmmrmu FILED RIFLES, 14m.

Ja 16 191 I.

3 MIBBTE- SHBET 3.

UNITED STATES PATENT OFFICE.

ADEIiMER M. BATES,'OF CLEVELAND, OHIO, ASSIGNOR T BATES VALVE BAG COMPANY, .OF CLEVELAND, OHIO, A CORPORATION OF WEST VIRGINIA.

MACHINE FOR FILLING VALVE-BAGS.

Application filed February 23, 1907.

To all whom it may concern:

Be it known that I, ADELMER M. Barns, a citizen of the United States, residing at Cleveland in the county of Cuyahoga and State of ()hio, have invented a certain new and useful Improvement in Machines for Filling Valve-Bags, of which the following is a specification.

My invention relates to machines for filling bags with measured amounts of material by weight and has for its object to provide new and improved constructions in machines of that class' The invention relates more particularly to machines for filling valve bags or other receptacles which have to be filled through a relatively small opening, and contemplates an arrangement for suspending the bags upon filling tubes, which tubes, together with the bags, are connected with scales to measure the proper amount of material which'the bags are to receive, the tubes and their associated parts being auton'iatically disengaged from a stationary part of the'machineby operation of the scale.

By making the parts of the apparatus immediately connected with the bags capable of easy disengagement from the rest of the machine I obtain a degree of accuracy in the measurement of the material which is not possible in the older forms of bag filling machinery.

My invention also contemplates support ing the ba from'the top alone instead of giving it the ordinary support at the bottom, although the bags might be so sup; ported and jigged if necessary if the character of the material of which the bags are made or of the material with which they are to be filled should make such a support expedient.

The invent-ion has for its object also such further improvements and novel dcviccs as are shown and will be described in the following specification.

The invention is illustrated in the accompanying drawings. wherein Figure 1 a front elevation of a portion of the machine; Fig. 2, a side elevation with parts insertion; Fig. 3, a side elevalion with the parts in a different position; Fig. 4-, a section on line AA, Fig. 2, and

Specification of Letters Patent.

Patented Jan. 10, 1911.

Serial No. 858,835.

Fig. 5, a section on line BB, Fig. 2. Fig. 6, a side diagrammatic view of the jigging apparatus;

Like letters of reference indicate like parts in all the drawings.

It. will be understood that the machine will ordinarily be constructed to fill a numher of bags at the same time. It will only be necessary, however, to show the devices for filling a single bag.

1 is a hopper or bin containing the material with which the bags are-to be filled, this hopper terminating preferably in :1. cylindrical feeding chamber 2 in which revolves a shaft 3 carrying the preferably curved propeller blades l, 4. The discharge 0 ening 5 in the feed chamber is eontrolle by a valve 6.

It may be said that any form of feeding device may be used as this forms by itself no part of my present invention.

The bag is supported at the top by a, filling tube 7, which extends through its fillin opening, and preferably on the sides an back by the cradle 8. The filling tube normally alines with discharge opening 5, beingheld against a block 9 on the outside of the fillin chamber by the operation of the scale whici will be described later. The filling tube is connected with a swinging frame work consisting of two uprights 10, 10 conneeted by the preferably integral cross pieces 11, 12, and 13, the inner end of the filling tube being secured to a bracket 14 extending from ,the cross piece 13. The cradle is supported by the bracket 15. The uprights 10 are riveted to the sides of the cradle. "Thisframe work carrying the filling tube and the cradle is connected with the rest of the machine so as to be capable of some vertical movement. It is also associated with some form of weighing apparatus so that the filling tube will be held in alinement with the discharge opening of the filling chamber during the filling operation and will be free to move away from the same when the required quantity of material has been inserted in the bag. For example, in the machine illustrated in the drawings, I provide the ends of the uprights 10 with forks 16 which rest upon the knife edges 17 on the scale beams 18 suitably connected together to form a rigid frame work and balanced by the weight 19. The upper end of the frame work carrying the filling tube is aided in any suitable manner. For examp e, I provide a cross rod 20 preferably made in two sections connected by the turn buckle 21, one end of the cross rod being apertured and having the knifeedge 22 in the aperture bearing upon a pin 23 on a bracket 24 connected with the stationary part of the ma.-. chine, the other end of the cross rod having a similar a 'erture through which extends pin 25 on t e cross piece 11 of the frame' work. It will be seen that the filling tube is perfectly free to and will move awa from the discharge opening in the filling chamber as soon as the gravity of the weight 19 is.

overcome by the insertion of the proper amount of material into the ba This arrangement insures a very high degree of accuracy of measurement. I also provide antomatically operated means for shutting down valve'6 simultaneously with the disengagement of the filling tube. In the machlne shown in the drawings the valve closing mechanism is operated directly through the movement of the vertically movable frame.

26 is a bell crank pivoted by a shaft 27 having hearings in the bracket 24. A coil spring 28 is wrapped around shaft 27 with a 100 29 bearin a ainst the lower arm of the bel crank. T e ll crank is provided with the handle 30. The upper end of the bell crank normally enga es with a dog 31 pivoted by a pin 32 in t e bifurcated end of a weight 33, the same shaft 32 serving to pivot the weight to a yoke 24 extending from a stationary part of the machine. The lugs 35, 35 at the end of the wei ht have slots 36 36 which receive the ends 0%21 pin 37 carried by the dog. These slots are preferably considerably larger than the diameter of the pin. At the other end of the weight is a spring piece 38 which normally rests upon the cross piece 12 of the vertical frame work. The valve 6 which extends through a slot in block 9 is attached to the lower end of the belljcrank by a fork 39 in which are slots 40, making a loose connection with the pins 41 on opposite sides of the bell crank. The parts are shown in these positions in Flgls. 1 and 2. A downward movement of t e frame caused by the tilting of the scale beam operates to bring the parts in the positions shown in Fig. 3; that is; cross piece 12 will move out from under the spring piece 38,the weight will tilt on its Pivot, striking a sharp blow on the pin 37 o the dog, causing the dog to release the bell crank which is turned on its ivot by coil spring 28,forcing the valve ownward across the discharge openin and shutting off the feed. The weight de ivers a hammer like blow upon the dog because of the loose connection made by pin 37 in slots 36 and the bell crank operates in bar 57 to oscillate the parts.

the same we upon the valve, thus overcoming the tent ency of the parts to stick. A stop 42 is rovided for the weight. The frame'and dlling tube may be returned to their normal positions bylifting up the ban le 30. The weight is provided with a pivoted loop 43 which comes into engagement with a groove 44 on the handle, the weight being thus lifted into its initial position.

The scale beams 18 have the grooved blocks 45 supported on the knife edges 46. The weight 19 is hung from a threaded bolt 47 and held in adjustment by nuts 48, 48. It will be observed that the machine is so constructed that the bearing parts are positioned and covered so as not to be clogged by any loose material that may come from the machine.

It is important that the vertically movable f'ran'ie should be held from lateral motion and the filling tubes accurately guided into position in alincment with the discharge opening of the feed chamber. This I accomplish by means-of the double scale beam with its engagement with the cradle on each side. This engagement must be necessarily a sliding one, that is, there must be a sliding connection between the knife edges 17 and the sides of the cradle In order to reduce friction I prefer to cut away the inner side of the knife edge as shown in Fig. 5, thus forming a point 49 in contact with the side of the cradle. The knife edges 46 may be constructed in the same manner.

In the mouth of the feed hopper is preferably an agitator consisting of a shaft 50 on which are propeller blades 51. The shafts 3 and 50 may be driven either independently or one from another. The bag may be held upon the fill-ing tube 7 in any desired manner, for example, I have shown a. clip 52 pivoted to the parts 14 which is pressed against the material of the bag by a cam 53 pivoted in a fork 54 on the diagonal brace 14- :md provided with a handle 55.

I wish it to be understood that I do not desire to be limited to the exact details of mnstruction shown and described for obvious modifications will occur to any person skilled in the art.

The jigging device, which may or may not be used, butwvhen used serves on occasion to jig'or shake the bag is set out in Fig. 6, wherein 56 is the jigging board and having the downwardly depending jigging bar 57 in the sleeve 58, which is mounted on the rock lever 59 fulcrumed on the standard 60. The outer end of this lever has the link 61 on the trcadle 62, which is fulcrumedat (33. Associated with the lower end of the sleeve :78 is the eccentric shaft 64, driven by the belt 65 and carrying the eccentric 6'6 adapted to oporate against the lower end of the The operawill not be necessary to jig the bag or shake relation withit. 'We' have, therefore, here .and a discontinuous jigging action. -no igging is done the bag 18 supported 'witl'rtl'i'e's'cale and the filling tube is also. so

and the agitating device onthe shaft. will raises the jigging device so as to bring it into operative relation to the bag above. This may he done at any part of the tilting of the bag where such action is desired. it will he understood that this strcuture is purely diagrammatic, the supporting f zone and parts not bcingshown.

The use and operation of my invention are as follows: Referring to the jigging apparatus, it is enough to say that it is ar- "anged so as to be, at the will of the operator, in or out of, action. In many cases it tion of the treadle tilts the lever 59 and j i it, as the pressure ofthe material supplied through the filling tube will be sufiicient to thoroughly fill the bag. The bag is shown as without abottom support; except when the jigging table is brought into operative illustrated a disc01 itinuous top support for the bagfor when it is on the jigging table it is not supported on the tube, adiscontinnous bottom; support for a similar rearson, Vhen wholly from the to and from within. I'Jooking at the filling tube, we find that it is a separable filling tube, that it is a movable tube in the sense that it moves with relation to thepart from which itis supplied. Itis capable, therefore, of dis-association with reference to the feeding apparatus. The entire bag support, when the bag is supported "on the tube, is in permanent relation to speak, rigid on the scale, or so as to move with its arm. The cut-otl' is tangential to the circle of the rotating feed part, which brings its inner facet-lose to such circle and therefore prevents the packing of the material in the passage-way leading to the filling tube. The cut-otl'. by the mechanism described. is'moved by a ha nimer blow to start it even though the material shall have packed about it. This hammer blow is efi'ccted by means of the mechanism consisting of weights, dogs and enlarged pivot slots, as

illustrated. In the entire scale device it will be observed that the kn fe edge is upper most to keep the machinery clean and that the. weight side or" the scale lever is one half as long as the other. The whole drawing, particularly thefjiggiug' device. is to be taken as more'or less diagrammatic.

The apparatus in the position shown in Fig. Qisready for action. "\Vhcn the ma l'ihinc is to be filled, for-example by sugar, there will be a supply in the upper hopper kec it stirred and feed it down into the feet ing device, which consists of a cylindrical case and a double armed rotary Feeder. The cutoff is retracted so that thepassagc is open through the same into the filling i tube. On this filling tube the bag is held in position by the bag clamp and the bag is supported on the tube from within. The process of filling the bag will continue until it has reached the amount balanced by the Weight l.) when a slight. increase in weight. will start the bag support and its associated mechanism down. The moment it starts down, however, the support taken away from the weight 33 and the latter drops throwing the. dog- 31. out of engagement with' the elbow crank lcver 26. The dog is released by a human-r blow because of the n'iovement oi the pin in the slot. 'l he. spring throws the elbow crank lever armind, drivwhereupon the bag is supported on the jigi ging board and is jigged thereby to shake down its contents. lVhen the bag is discharged from its support on the scale, the scale portions will rise and. the filling tube will resume its relation opposite the Openin;;; in the feeding device. The operator now seizes handle 30 and raises it until all the parts assume the position indicated in Fig. 2. The stop 4-2 serves as a stop for the sev eral parts as indicated in Figs. 2 and 3. Be fore thisis done, however. a new bag will have been put on the filling tube. The weight on the scale beam is adjustable and the jig board is adjustable.

This device is, of course, applicable so far as some-of its essential features are concerned, to the filling of a form of package other than a bag. the essential point being that the bag or other package or receptacle is mounted on the scale beam along with the filling tube. Where a soft flexible bag is used. and also in olhercases, the bag may be held on the lube, butthatis a mere incident in a convenient adaptation of the device to the filling of bags. As previously stated, the essential feature. broadly speaking, as applied to any package is that the package and the filling lube should be mounted on the scale beam so as to move therewith, and as applied to the titling of bags an important detail of the structure is that the bag itself be hung upon or supported by the tube.

I claim:

1. The combination of a scale. a' feeding device for feeding the loose granular material. and a valve package filling and holding tube extending horizontally to hold the package and food the material thercinto and separately mounted on a movable part of the scale.

2. The combination of a scale, a feeding device for feeding the loose granular material, and a valve package filling and holding tube extending horizontally to hold the package and feed the material thercinto and separately mounted on a movable part of thescale, and a cutoli' between the feeding device and filling tube. The combination of a scale, a feeding device for feeding the loose granular material, and a valve package filling and holding tube extending horizontally to hold the package and feed the material thereinto and separately mounted on a movable part of the scale, and a cut-off between the feeding device and filling tube, the feeding device having a rotating part and the cut-oft being tangential to the path of rotation of the feeding device.

4. The combination of a feeding device having a rotary feeder, with a filling tube laterally projecting therefrom, and a cutott between them tangential to the path of the rotating device. g

5. In a package filling'machine,-the conibination of a feeder and a scale, with a horizontally disposed filling tube mounted on the scale, the filling tube held in operative relation to the feeding device by the weight of the scale.

(3. In a package filling machine, the combination of a feeding device with a horizontallv disposed laterally proiecting. coinbincd filling tube and package holdelnseparately mounted.

7. In a package filling machine, .the combination of a feeding device-with a horizontally disposed laterally projecting combined filling tube and package holder separately mounted and a separate package engaging cradle.

8. In a package filling device, the combination of a feeding device relatively fixed in position, with a combined package holding and filling tube movable with the package out of alinementwith the feeding device.

9. In a package filling device the combination with a feeding device relatively fixed in position of a package holding and filling tube and means responsive to the weight of the contents of the package for moving sa id tubewlth the package out 'of alinement with the feeding device.

10. In a package filling device the combination of a feeding device with a horizontally disposed package filling 'tubeadapted to enter the package and serve as the support therefor from within the packa e.

11. In a package filling device t e comhination of a feeding device with a horizontally disposed package filling tube adapted to enter the package and serve as the support ing the packa therefor from within the package, and a clasp outside the package in opposition to the tube to clamp the package material between them.

12. In a package filling device the combination of a feeding device with a horizontally disposed package filling tube adapted to enter the package and serve as the support therefor from within the package, and a scale on a movable part of which the filling tube is mounted.

13. In a package filling device the combination of a feeding device with a horizontally disposed'package filling tube adapted to enter the package and serve as the support therefor from within the package, and 30 a clasp outside the package in opposition to the tube to clamp the package material between them, and a scale on a movable part of which the filling tube is mounted.

14. In a package filling device a tube 5 approximately as ong as the width oi the package and adapted to be inserted through a side opening in the package and to serve as the sole support for the ackage b en-' gage'ment with the inner wa ls thereo 15. In a package filling device a 'tubeap proximately as lon as the width of t e package and adapts to be inserted through a side openingin the package and to serve as the sole suppor for the packa ment with the inner walls t cradle about the sides of steady it. y

16. In a package filling device the comereof anda'; the package to bination of a scale with a laterally project- 00 ing filling tube mounted on a movable part thereof and adapted to support the package from within.

17. In a package filling devicethe com.

bination of a scale wit-h a laterally project- 1';

19. In a package filling machine, a scale 5 with a movable part and means for supporting the package containing a horizontallydis osed tube which enters the package on suc movable art with a package feedin device separate y mounted, and a cut-01f an 2 means for operating the same responsive to the movement of such movable part.

20. In a package filling machine, a. scale, with a movablepartand means for supporton such movable a package fee ing device separate y mounted, and acut-01f and operating mechanism therefor containing means for striking a sudden blow on'the cut-'ofi responsive to the movement of'su'ch moving part.

e, by engage-1, 5

rt, with 25 21. In a package filling machine, the com bination of a scale having a movable part with a seliiarately mounted feeding device. a movable cut-off associated therewith, and a horizontally disposed tube associated with the movable part of the scale, the filling tube and cut-elf movable toward and from each other responsive to the movement of such movable part.

22. In a package filling machine, the combination of a feeding device, a cut-off associated with the feeding device, a filling tube associated with the package supporting device, and means whereby the cut-off and the filling tube are moved with such moving part,1 said filling tube being horizontally dispose 23. In a package filling machine, the combination of a feeding device with a movable cut-oft therefor associated therewith, a-movable filling tube horizontally disposed, and

. connections whereby the motion of the filling tube imparts motion to the cut-ofi".

24. In a package filling machine, the combination of a feeding device with a movable cut-oil therefor associated therewith, a movable filling tube horizontally disposed, and connections whereby the motion of the filling tube imparts motion to the cut-off. a scale and said filling tube mounted on a' movable part of the scale.

25. In a package'filling machine, the combination of a feeding device with a movable cut-off therefor associated therewith, a movable filling tube, and connections whereby the motion of the filling tube imparts motion to the cut-off, and means for delivering a blow to the cut-off intermediate thefmovable filling tube and cut-ofl".

26. In a package filling machine the combination of a feeding device with a movable cut-ofi therefor associated therewith, a movable filling tube, and connectio'ns whereby the motion of the filling tube imparts motion to the cut-ofi, a scale and said filling tube mounted on a movable part of the scale, and means for delivering a blow to the cutoflf interritediatethe movable filling tube and cut-off.

27. In a package filling machine the combination of a. scale beam with a frame rising therefrom, a horizontally disposed filling tube mounted thereon, and a feeding device in opposition to and registering with such fillingtube.

28. In a package filling machine the combination of a scale beam with a frame rising therefrom, a filling tube mounted thereon, and a feeding device in opposition to such filling tube, and a guide for the top of said frame.

29. In a package filling machine the com-' bination of a scale beam with a frame rising therefrom, a filling tube mounted thereon, and a feeding device in opposition to such filling tube, and a cut-off associated with the feeding device.

30. In a package filling nnichinc the combination of a scale beam with a frame rising therefrom, a filling tube moon l thy-teen, a feeding device in opposition to such filling tube, a cut-off associated with the fecdii'eg device, and connections from the frame to the cut-off whereby the latter is moved by the motion of the former.

31. In a. package filling machine, the combination of a scale beam with a frame rising therefrom, a filling tube mounted thereon, a feeding device in opposition to such filling tube, a cut-ofi' associated with the feeding device, and connections from the frame to the cut-oft whereby the latter is moved by the motion of the former, said connections including a hammer blow device to operate on the cut-off.

82. In a package filling device, the combination of a bifurcated'scale beam, with a package support comprising a cradle in which the package is hung, and a support on which the package is mounted.

33. In a package filling device, the combination of a bifurcated scale beam, with a )ackage support comprising a cradle in hich the package is hung, and a support. on

which the package is mounted, said package support consisting of a fillingtube which enters the package and supports it from within.

34. In a package filling machine, the combination of a movable scale part, with a horizontally disposed filling tube thereon to suportthe package from within, and an adustable jigging board to intermittently sup port the package from without.

In a receptacle filling machine. the combination of a feeder and a scale with a filling-tube mounted on the scale the filling tube held in operative relation to the feeding device by the weight of the scale and adapted to be thrown out of such operative relation when any predetermined weight has been reached.

36. In a filling device, the combination with a feeding device relatively fixed in position, of a package holding device, a filling tube, and means responsive to the weight of the contents of the package for moving said tube with the package out of alinement with the feeding device.

37. In a filling device, the combination of a scale beam .with a frame rising therefrom, a filling tube mounted thereon, a feeding device in opposition to such filling tube, and a guide for the top of said frame,

38. In a filling device, the combination of A 2 scale beam with a frame rising therefrom, an a n'n'oximately l'iorizontaltv disposed filling tube mounted thereon, a 'feeding device in opposition to such filling tube, and a (rutofi' associated with theifeeding device.

89; In a package filling machine, the combination of a scale beam with a frame rising therefrom, a filling tube mounted thereon, a feeding device in opposition to such filling tube, a cut-oil associated with the feeding device, and coi'inections from the frame to the eut-otl' whereby the latter is moved by the motion of the former.

-10. In a filling machine, the combination of a scale beam with a frame rising therefrom,a filling tube mounted thereon, a feeding device in opposition to such filling tube, a cut-oil associated with the feeding device, and connections from the frame to the cutofi" whereby the latter is moved by the motion of the former, said connections including a hammer blow device to operate on the cut-off.

41. In a filling machine the combination of a scale beam with a frame rising therefrom, a cradle thereon in connection with a the feeding device, and connections from the r cut-oil to the scale beam and cradle whereby the cut-off is moved by the motion of the scale beam.

42. In a filling machine the combination of a scale beam with a frame rising therefrom, a cradle thereon in connection with a filling tube, a feeding device in opposition to such filling tube, a cut-off associated with the feeding device, and connections from the cut-off to the scale beam and cradle whereby the cut-off is moved by the motion of the scale beam, said connections including a ha1nmer blovv device to operate on the cut-off.

ADELMEB Mi BATES.

Witnesses:

AUSTIN Cone, NINA L. Srnnrmms. 

